The change in enthalpy for a reaction is negative. This indicates that the reaction is ___. A. spontaneous B. non-spontaneous C. exothermic D. endothermic 相关知识点: 试题来源: 解析 C。负的焓变表明反应是放热的。选项 A“spontaneous”表示自发的;选项 B“non-spontaneous”表示非自发的;选项 C...
A. reactants B. products C. equilibrium state D. reverse reaction 相关知识点: 试题来源: 解析 B。平衡常数大说明反应更倾向于生成产物。选项 A“reactants”表示反应物;选项 B“products”表示产物;选项 C“equilibrium state”表示平衡状态;选项 D“reverse reaction”表示逆反应。所以答案是 B。反馈...
The smell of a substance changed after a reaction. This indicates... A. A physical change B. A chemical change C. No change D. A wrong E. xperiment 相关知识点: 试题来源: 解析 B。物质气味改变通常是化学变化。选项 A 物理变化一般不涉及气味明显变化;选项 C 有变化;选项 D 不是错误实验。
a new story a new study indicates a new style of text e a new term a new tread a new trend a newborn sun is shin a newest end a newspaper reporter a nice day a nice fit a nice theory a nice to meet you to a night of romance a a night to remeber a night-stand a ning a ...
analysis at dischargi analysis authorizatio analysis examples analysis for preventi analysis indicates th analysis measuring me analysis methods for analysis of beams and analysis of changchun analysis of electroki analysis of environme analysis of forklys c analysis of fouling m analysis of hydraulic...
anon quelle espressamente descritte 没有被描述的那些明确[translate] aThis Ea value indicates that partially purified MnP will need a higher energy input for performing the catalytic reaction. 这Ea价值表明部份地被净化的MnP将需要为执行催化反应输入的高能。[translate]...
38, His reaction indicates to me that I actually stand a chance of coming up with a workable design [of a bomb].() A. ...a bomb will be produced according to my design, B. ...designing a bomb will give me a chance of working....
aThis indicates that the nucleophilicity order is probably: [PF6]−< [BF4]−< [tfms]−. The reaction rates for the acylation of amine 1 follow the same order and therefore a correlation with the nucleophilicity of the ionic liquid might be implied. 这表明nucleophilicity命令大概是: (PF6)...
This indicates a deviation from the general pattern or, alternatively, that compound eyes are not representative of other body tissues. This is well-worth to investigate closer and with more accurate and detailed data MGM is well-equipped to study consequences of growth strategies among animals. ...
base anhydride(basic anhydride) - a metal oxide formed from the reaction between water and a basic solution. base metal- any metal besides a precious or noble metal used for jewelry or in industry. basic- alkaline or having a pH > 7. ...